5-methyl-2-(3-methylphenyl)-1,2-dihydro-3H-pyrazol-3-one CAS 35496-20-9

Purity 97%+In StockPharmaceutical Standards
CAS No.35496-20-9
Molecular FormulaC11H12N2O
Molecular Weight188.23 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-methyl-2-(3-methylphenyl)-1,2-dihydro-3H-pyrazol-3-one CAS 35496-20-9 chemical structure

Description

CATO manufactures 5-methyl-2-(3-methylphenyl)-1,2-dihydro-3H-pyrazol-3-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

5-methyl-2-(3-methylphenyl)-1,2-dihydro-3H-pyrazol-3-one (CAS 35496-20-9), molecular formula C11H12N2O and molecular weight 188.23 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C11H12N2O, 5-methyl-2-(3-methylphenyl)-1,2-dihydro-3H-pyrazol-3-one contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 188.23 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

Physical & Chemical Properties

Molecular FormulaC11H12N2O
Molecular Weight188.23 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1967
Nitrogen Atoms2

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